Error saving credentials: error storing credentials - err: exit status 1, out

[LAOKE1997]

Username: cosimo199701
Password:
Error saving credentials: error storing credentials - err: exit status 1, out: Post "https://hub.docker.com/v2/users/login?refresh_token=true": dialing hub.docker.com:443 with direct connection: connecting to 208.101.21.43:443: dial tcp 208.101.21.43:443: connectex: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.

after entering my username and password, this error is reported. Could u please have a look?
thanks